*{
	margin: 0;
	padding: 0;
	list-style: none;
	font-family: "微软雅黑";
}

html{
	font-size: 62.5%;
}
body{
	font-size: 1.3em;
}

.clear:after{
	display: block;
	content: "";
	clear: both;
}

img{
	border: 0;
}

a{
	text-decoration: none;
	color: black;
}

.tipsBox{
	width: 20em;
	background: rgba(0,0,0,0.5);
	text-align: center;
	height: 9em;
	padding: 0.4em 0;
	position: fixed;
	left: 50%;
	margin-left: -10em;
	top: 50%;
	margin-top: -6em;
}

.tipsBox>img{
	width: 3em;
	height: 3em;
	display: block;
	margin: 1em auto 1em;
}

.tipsBox>.tip{
	color: #fff;
	font-size: 1.4em;
}

